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/*
Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org>
This file is part of aubio.
aubio is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
aubio is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with aubio. If not, see <http://www.gnu.org/licenses/>.
*/
#include "aubio_priv.h"
#include "fvec.h"
fvec_t * new_fvec(uint_t length) {
fvec_t * s;
if ((sint_t)length <= 0) {
return NULL;
}
s = AUBIO_NEW(fvec_t);
s->length = length;
s->data = AUBIO_ARRAY(smpl_t, s->length);
return s;
}
void del_fvec(fvec_t *s) {
AUBIO_FREE(s->data);
AUBIO_FREE(s);
}
void fvec_set_sample(fvec_t *s, smpl_t data, uint_t position) {
s->data[position] = data;
}
smpl_t fvec_get_sample(const fvec_t *s, uint_t position) {
return s->data[position];
}
smpl_t * fvec_get_data(const fvec_t *s) {
return s->data;
}
/* helper functions */
void fvec_print(const fvec_t *s) {
uint_t j;
for (j=0; j< s->length; j++) {
AUBIO_MSG(AUBIO_SMPL_FMT " ", s->data[j]);
}
AUBIO_MSG("\n");
}
void fvec_set_all (fvec_t *s, smpl_t val) {
#if !defined(HAVE_ACCELERATE) && !defined(HAVE_ATLAS)
uint_t j;
for (j=0; j< s->length; j++) {
s->data[j] = val;
}
#elif defined(HAVE_ATLAS)
aubio_catlas_set(s->length, val, s->data, 1);
#elif defined(HAVE_ACCELERATE)
aubio_vDSP_vfill(&val, s->data, 1, s->length);
#endif
}
void fvec_zeros(fvec_t *s) {
#if !defined(HAVE_MEMCPY_HACKS) && !defined(HAVE_ACCELERATE)
fvec_set_all (s, 0.);
#else
#if defined(HAVE_MEMCPY_HACKS)
memset(s->data, 0, s->length * sizeof(smpl_t));
#else
aubio_vDSP_vclr(s->data, 1, s->length);
#endif
#endif
}
void fvec_ones(fvec_t *s) {
fvec_set_all (s, 1.);
}
void fvec_rev(fvec_t *s) {
uint_t j;
for (j=0; j< FLOOR(s->length/2); j++) {
ELEM_SWAP(s->data[j], s->data[s->length-1-j]);
}
}
void fvec_weight(fvec_t *s, const fvec_t *weight) {
#ifndef HAVE_ACCELERATE
uint_t j;
uint_t length = MIN(s->length, weight->length);
for (j=0; j< length; j++) {
s->data[j] *= weight->data[j];
}
#else
aubio_vDSP_vmul(s->data, 1, weight->data, 1, s->data, 1, s->length);
#endif /* HAVE_ACCELERATE */
}
void fvec_weighted_copy(const fvec_t *in, const fvec_t *weight, fvec_t *out) {
#ifndef HAVE_ACCELERATE
uint_t j;
uint_t length = MIN(out->length, weight->length);
for (j=0; j< length; j++) {
out->data[j] = in->data[j] * weight->data[j];
}
#else
aubio_vDSP_vmul(in->data, 1, weight->data, 1, out->data, 1, out->length);
#endif /* HAVE_ACCELERATE */
}
void fvec_copy(const fvec_t *s, fvec_t *t) {
if (s->length != t->length) {
AUBIO_ERR("trying to copy %d elements to %d elements \n",
s->length, t->length);
return;
}
#ifdef HAVE_NOOPT
uint_t j;
for (j=0; j< t->length; j++) {
t->data[j] = s->data[j];
}
#elif defined(HAVE_MEMCPY_HACKS)
memcpy(t->data, s->data, t->length * sizeof(smpl_t));
#elif defined(HAVE_ATLAS)
aubio_cblas_copy(s->length, s->data, 1, t->data, 1);
#elif defined(HAVE_ACCELERATE)
aubio_vDSP_mmov(s->data, t->data, 1, s->length, 1, 1);
#endif
}
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